Children (11 direct children, 13 direct and indirect children):
Trigonocidaris indica
Trigonocidaris albida
Trigonocidaris monolini
Trigonocidaris nitidus
(tree size 2)
Trigonocidaris albidioides
Trigonocidaris micropora
Trigonocidaris sculptus
Trigonocidaris versicolor
Trigonocidaris radiata
Trigonocidaris tuberculata
Tuberculocidaris